Wringer



July 19, 1938. w L KAUFFMAN, 2D 2,124,069

WRINGER I Filed Oct. 16, 1935 IN V EN TOR.

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Patented July 19, 1938 UNlTED STATES PATENT OFFICE WRINGER Application October 16, 1935, Serial No. 45,279

'7 Claims.

It has been common to provide wringers witn detachable tops so that the pressure on the rolls might be relieved by detaching the top. It is important during the normal operation of the wringer that the top be securely held in place on the frame stiles and the present invention is designed to improve the connection between the top and the stiles to provide a readily detachable top, one that is normally secured, and one that may be cheaply applied and formed of comparatively light material. Features and details of the invention will appear from the specification and claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing as follows:

Fig. l shows a front elevation of the wringer, a part being in section to better show construction.

Fig. 2 a section on the line 2 2 in Fig. 1.

Fig. 3 a section on the line 3 3 in Fig. 1.

Fig. 4 a perspective view of a connecting latch.

Fig. 5 a section on the line 5-5 in Fig. 1.

Fig. 6 a view showing the top swung to unlatching position.

Fig. 7 a similar view showing the top with a latch in engagement.

The wringer frame comprises the bottom I and side stiles 2 and 3. These, as illustrated, are made of sheet metal, the stiles being of box form. A top i is arranged on the stiles. This, as illustrated, is of sheet metal and of channel form with closed ends, the top in place telescoping the upper ends of the Stiles. Rolls 5 and 6 are provided with shafts l and 8. The lower shaft 8 operates in bearings 9, one in each stile, which are carried by mountings il] resting on shoulders Il struck up in the side stiles. The shaft B is driven from a shaft l2 receiving power from any suitable source. The upper shaft l operates in bearings i3 arranged in the stiles. Stop bails i3d extend along the bearings and under the upper shaft. These bails have slots l5 which engage rods lll and 32 extending across the top bar. A pressure spring i6 rests on the upper bearings and pressure is exerted on the spring from the top bar through an adjusting screw Il. These parts so far as described have been previously made.

A safety release is provided for one end of the top bar. The particular type of safety release is not a feature of this invention, the one shown being the subject matter of a companion application. A releasing latch I8 is provided with an inclined slot I9 and the rod lll extends through this slot, thus pivotally mounting the latch i8 on the top bar. The latch has catch extensions 24J which extend into slots 2| in the inner face of the stile. The latch as shown has the two side members which are united by a cross member 22. The cross member is normally locked in position by a locking latch 23 which is pivotally hung on 5 the underside of the top bar. The releasing latch i3 is normally held in the slot 2l by a latch spring 211i. Cross bars 25 extend from front to rear of the top bar and have perforations 25 which engage lips 2l on the locking latch. The cross 10 bars are secured to operating bars 28 front and rear of the top bar by which the locking bar may be swung.

In the operation of this device the locking bar 23 is swung by pressure on either of the operating .15 bars. This carries the locking bar off the end of the cross bar 22 and thus releases the releasing latch. As the releasing latch swings upwardly the engaging extension 2l) is withdrawn from the slot 2l and thus this releasing end of the top 20 bar is released and swings upwardly under the pressure of the spring i6.

The opposite end of the top bar is provided with a latch 2S which is pivotally mounted on the cross rod 32. cross member 29 and sides 36, these sides 3D each having a perforation 3l for receiving a rod 32. The inner face of the side stile 2 is provided with notches forming shoulders 33 and the latch 28 has locking hooks 34 which extend into the 30 notches and engage the shoulders 33. In this way this end of the to-p bar is locked on the stile. The face of the hook 34 is inclined at 36 so that the latch swings on the rod .33 as the top bar is put in place on the stile, thus permitting 35 the latch to pass the upper part of the stile so that the hook may reach the notch. The latch has extensions 35 on the side plates 3&1 which in the engaged position, as indicated in Fig. 7, engage the under-side of the upper wall or the top 40 bar. This holds the latch in position so that when the top is put in place the surfaces 3@ are positioned to engage the top of the stile.

When the release end of the top bar is released and swings upwardly the outer end of the top bar 45 at 3l slides downwardly along the outer face of the stile and this crowds the top bar endwise toward the left. This endwise movement carries with it the pivot pin 32 and the contact of the left edge of the latch with the corner 38 of the 50 stile retards the lower part of the latch and causes a swinging movement of the latch on the pin 32. The swinging movement swings the hook 34 out from under the shoulder 33 and thus releases the end of the top bar to which the latch 55 The latch 2S is U-shaped with a 25l is secured. 'Ifhis retarding and swinging movement of the latch is clearly illustrated in Fig. 6. 'Ihe release of both ends of the top bar assures a free opening of the rolls from end to end.

Ihis positive release through the upswinging of the top bar is particularly desirable where the free end of the top bar has its upswing affected by the stop bails |3a because with the reduced upswing brought about by the bails the release of the opposite end of the top bar must be accomplished in its comparatively Small upswing but still must be positive in its engagement while the wringer is in Set position.

What I claim as new is:-

1. In a wringer, the combination of a frame comprising side Stiles, one of the Stiles having a locking shoulder; a top bar mounted on the Stiles; Wringer rolls mounted in the Stiles; pressure means for the rolls exerting counter-pressure on the top bar; and devices detachably locking the top bar on one of the Stiles comprising a latch pivotally mounted on the top bar and interlocking with said shoulder, said latch swinging relatively to the top bar to pass the Shoulder as the top bar is placed on the stile and disengaged from the shoulder by the up-swinging of the opposite end of the top bar.

2. In a wring-er, the combination of a frame comprising side Stiles, one of the Stiles having a locking shoulder; a top bar mounted on the Stiles; wringer rolls mounted in the Stiles; pressure means for the rolls exerting counter-pressure on the top bar; devices detachably locking the top bar on one of the Stiles comprising a latch pivotally mounted on the top bar and interlocking with said shoulder, said latch swinging relatively to the top bar to pass the shoulder as the top bar is placed on the stile and dis-engaged from the shoulder by the up-swinging of the opposite end of the top bar; and a Safety release for actuating the devices.

3. In a wringer, the combination of a frame comprising side Stiles, one of said Stiles having a shoulder on its inner face; a top bar mounted on the Stiles, Said top bar being of channel form withl closed ends and telescoping the upper ends of the Stiles; wringer rolls mounted in the Stiles; pressure means for the rolls exerting counter-pressure on the top bar; and devices detachably locking the top bar to one of the Stiles comprising a latch pivotally mounted on the top bar interlocking With the shoulder, said latch swinging relatively to the top bar to pass the shoulder as the top bar is placed on the Stiles, said latch in engaged position contacting the inner face of the Stiles and movable out of engagement with the shoulder through said contact through the action of the bar and latch on the Stile.

4. In a wringer, the combination of a frame comprising as members side Stiles and a top bar on the Stiles; wringer rolls mounted in the Stiles; pressure means for the rolls exerting counterpressure on the top bar; devices releasably locking the top bar to one of the Stiles; and a latch connection between the top bar and the opposite stile, Said latch' connection comprising a latch pivoted on one of the members and interlocking with the other member, said latch having engaging surfaces contacting the member with which it is interlocked and having relation to the pivot of the latch to automatically release the latch upon the upswinging of the top bar.

5. In a wringer, the combination of a frame comprising side Stiles; a top bar on the Stiles; wringer rolls mounted in the Stiles; pressure means for the rolls exerting counter-pressure on the top bar; devices releasably locking the top bar to one of the Stiles; and a latch connection between the top bar and the opposite stile, said latch connection having interlocking parts comprising a latch pivotally mounted on the top bar and interlocking with the side stile and provided with engaging surfaces contacting a part of the side Stile and having relation to the pivot automatically releasing the latch upon the upswinging of the top bar.

6. In a wringer, the combination of a framecomprising side Stiles; a top bar on the Stiles; wringer rolls mounted in the Stiles; pressure means for the rolls exerting counter-pressure on the top bar; devices releasably locking the top bar to one of the Stiles; and a latch connection between the top bar and the opposite stile, said latch connection having interlocking parts comprising a latch pivotally mounted on the top bar and interlocking with the stile and provided with engaging surfaces contacting with a part of the stile automatically swinging to clear the stile in the setting movement of the top bar and having relation to the pivot to automatically release the latch upon the upswinging of the top bar.

'7. In a wringer, the combination of a frame comprising as members Side Stiles and a top bar on the Stiles; wringer rolls mounted in the Stiles; pressure means for the rolls exerting counterpressure on the top bar; devices releasably locking the top bar to one of the Stiles; a latch' connection between the top bar and the opposite stile, Said latch connection comprising a latch pivoted on one of the members and interlocking with the other member, said latch having engaging Surfaces contacting the member with which it is interlocked and having relation to the pivot of the latch to automatically release the latch upon the upswinging of the top bar; and Stop means operating on the upswinging end of the top bar.

WALTER L. KAUFFNIAN, II. 

